Knowles says Blue is only a month old so we'll have to wait a "minute" to see which parent Blue most resembles.

Speaking of Blue, her name is so popular that Jay-Z and wife Beyonce, who made her first post-baby appearance on Tuesday, have reportedly filed a trademark application with the U.S. Patent and Trademark Office. This comes after Chicago designer Joseph Mbeh tried to trademark the name "Blue Ivy Carter NYC" without their permission.